Fix typo in README

README.md

@@ -270,7 +270,7 @@ template: `
         <input type="number" v-model:value="config.w" />
 
         Rows:
-        <input type="number" v-model:value="config.w" />
+        <input type="number" v-model:value="config.h" />
       </div>
     `,
 ```